Carlos & all,   
      
   In article , "Carlos E.R."  wrote:   
   > Some multimeters have a scale to measure temps with a thermocouple, and   
   > the proper socket.   
      
   Seen in marketing publications but don't have one.   
      
   > Notice that the setup actually has two joints, one at the sensor and   
   > another (same loop) at the electronics board. The thing measures   
   > temperature differences between the two joints, so there is another type   
   > of sensor (ex.: thermistor) near the second joint. Think that the   
   > constantan wire has to join the electronic board metals at some point.   
      
   In the setup here, the second connection would be inside the Cal   
   Controls 3200 which I haven't opened.  Wikipedia refers to the   
   "reference junction".   
   https://en.wikipedia.org/wiki/Thermocouple#Reference_junction   
      
   A salvaged 3200 isn't expensive.  I think of buying one, comparing   
   observations and re-evaluating.   
      
   Thanks,                        ... P.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)